With the recent controversy in regard to Obama's pastor as one example. i believed that if Obama wins the democratic nomination he will lose the general election to McCain.
Another reason i don't think Obama will beat McCain is that the US won't vote for a Blackman for President (and yes i know his mother is white).
i found this on youtube, it is a Political ad form 2006 on a senate race in Tennese.
http://www.youtube.com/watch?v=0UZBZ...eature=related